Permit Record

Alteration Commercial

525 West 52nd Street, Manhattan, NY 10019

ClassificationSDMultifamily Alteration
Reliable valueNot in source
ContractorWelkin Mechanical LLC →
Permit record
Parties
Contractor
Welkin Mechanical LLC
Applicant
Stephen Lynch
Owner
525 W 52 Property Owner LLC
Architect
Not in source
Engineer
Not in source
Contractor license
0001406
Building & lot · PLUTO
Building class
RM
Zoning district
R9
Lot area
38,058 sq ft
Year built
2015
Units (total)
395
Units (residential)
392
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
1010817501
Climate zone (IECC)
4A
Roof area (est.)
50,225 sq ft
HVAC tonnage (est.)
744 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.7665, -73.9922
Geocode confidence
95%
Geocode source
Not in source
Issued
Jun 23, 2015
Applied
Jun 23, 2015
Work class
Not in source
Status
Current status
issued
Source status
ISSUED
Expired
Jun 22, 2016
Provenance
First seen by PermitCore
May 2, 2026 · 15:58 UTC
Last seen
Jul 17, 2026 · 02:25 UTC
Last changed
May 3, 2026 · 03:15 UTC

Open in New York City source →

Data-quality checks0 of 12 flagged

0 of 12 data-quality rules flagged anything on this permit.

Checks not flagged

  • Geocode out of bounds
  • Geocode is sentinel
  • Issued date in the future
  • Issued date parse bug
  • Issued date is placeholder
  • Commercial units is placeholder
  • Residential units out of bounds
  • Residential units is placeholder
  • Total units out of bounds
  • Total units is placeholder
  • Valuation out of bounds
  • Valuation is placeholder
Project timeline at this parcel

85 permits at this parcel (parcel 1010817501) · through Feb 22, 2023

  1. Feb 22, 2023595902123Alteration Commercial · Finaled$40,000Kle Construction INC
  2. Feb 3, 2023936764687MEP Plumbing · Finaled$20,000John Fitzgerald Plbg &Htg
  3. Oct 18, 2022891324687MEP Mechanical HVAC · Finaled$30,000Qwest Contracting CORP
  4. Oct 18, 2022493999465MEP Plumbing · Finaled$22,000Advanced P,mech & Sprk CO
  5. Oct 18, 2022493999465Alteration Commercial · Finaled$22,000Advanced P,mech & Sprk CO
  6. Oct 18, 2022177748349Alteration Commercial · Finaled$22,000Advanced P,mech & Spr Cor
  7. Oct 18, 2022177748349MEP Plumbing · Finaled$22,000Advanced P,mech & Spr Cor
  8. Oct 12, 2022780563991Alteration Commercial · Finaled$40,000Qwest Contracting CORP
  9. Jul 20, 2019891147858Other · Finaled$2,000C Squared Systems, LLC
  10. May 24, 20183574529Alteration Commercial · IssuedWelkin Mechanical LLC
  11. Jun 23, 2015This permitAlteration Commercial · IssuedWelkin Mechanical LLC
  12. Nov 26, 20142889515Demolition · IssuedTitan Industrial Svc CORP
  13. Nov 13, 2014legacy_jobs:2356806Demolition · Finaled
  14. Nov 13, 20142882729Demolition · IssuedTitan Industrial Svc CORP
  15. Nov 13, 20142882725Construction Equipment · IssuedTitan Industrial Svc CORP
  16. Jun 11, 2014legacy_jobs:2360772Temporary · Finaled
  17. Jun 11, 20142804357Construction Equipment · IssuedArsenal Scaffold INC
  18. Jun 10, 2014legacy_jobs:2360553Temporary · Finaled
  19. Jun 10, 20142804031Construction Equipment · IssuedArsenal Scaffold INC
  20. May 30, 2014legacy_jobs:2357864Alteration Commercial · Finaled$5,000
  21. May 30, 20142798602Alteration Commercial · IssuedWelkin Mechanical LLC
  22. Oct 22, 20092175800Other · IssuedJa Lee Electric INC
  23. Oct 9, 20092171360Other · IssuedJa Lee Electric INC
  24. Oct 2, 20092168606Other · IssuedJa Lee Electric INC
  25. Oct 2, 2009legacy_jobs:1757126Alteration Commercial · Finaled$60,000
  26. Apr 15, 20082030005Alteration Commercial · IssuedCity Renovation INC
  27. Oct 2, 20071089669Alteration Commercial · IssuedMand Restoration
  28. Oct 2, 2007legacy_jobs:624857Alteration Commercial · Issued$1,000
  29. Aug 8, 20071510595MEP Plumbing · IssuedJ-J Plumbing CORP
  30. Aug 8, 2007legacy_jobs:610483Alteration Commercial · Issued$63,000
  31. Jun 28, 2007242044Other · IssuedMand Restoration
  32. Jun 28, 2007242068MEP Mechanical HVAC · IssuedMand Restoration
  33. Feb 9, 2007legacy_jobs:583775Alteration Commercial · Issued$140,000
  34. Feb 9, 2007952071MEP Plumbing · IssuedRichard Lyne Plg And Htg
  35. Feb 9, 2007legacy_jobs:583784Alteration Commercial · Issued$140,000
  36. Feb 7, 2007488487Other · IssuedCity Renovations INC
  37. Feb 7, 2007488515MEP Mechanical HVAC · Re-issuedMec Con Associates INC
  38. Apr 11, 2006659305Construction Equipment · Re-issuedColgate Scaffolding&equipment
  39. Feb 28, 2006970545Other · IssuedGeiger Constr. CO INC
  40. Aug 25, 2005797617MEP Mechanical HVAC · IssuedMec Con Associates INC.
  41. Aug 25, 2005legacy_jobs:524544Alteration Commercial · Issued$340,000
  42. Aug 25, 2005legacy_jobs:524553Alteration Commercial · Issued$340,000
  43. Jul 7, 2005legacy_jobs:511877Alteration Commercial · Issued$740,000
  44. Jul 7, 20051017419MEP Plumbing · IssuedRichard Lyne'S Plubg Heatg CORP
  45. May 18, 20051825645Construction Equipment · IssuedColgate Scaffolding&equipment
  46. May 18, 2005legacy_jobs:2796421Temporary · Issued
  47. May 10, 2005legacy_jobs:506097Alteration Commercial · Finaled$355,000
  48. May 10, 20051821235Other · IssuedGeiger Constr. CO INC
  49. Apr 19, 20051808974Alteration Commercial · IssuedCity Renovation INC
  50. Mar 18, 20051791148Construction Equipment · IssuedColgate Scaffolding & Equipment
  51. Mar 15, 2005legacy_jobs:507017Alteration Commercial · Finaled$48,000
  52. Mar 15, 20051780169Other · IssuedRapacioli Construction CORP
  53. Jun 3, 20041343598Construction Equipment · IssuedColgate Scaffolding
  54. Jun 3, 20041703130Construction Equipment · IssuedColgate Scaffolding
  55. Jun 3, 2004legacy_jobs:474477Temporary · Issued
  56. Apr 16, 2004legacy_jobs:467694Alteration Commercial · Issued
  57. Apr 16, 2004882011Construction Equipment · IssuedColgate Scaffolding & Equipment
  58. Feb 27, 2003legacy_jobs:422027Alteration Commercial · Issued$5,000
  59. Apr 24, 2002legacy_jobs:342754Alteration Commercial · Finaled$20,000
  60. Apr 24, 2002302944Other · IssuedGeiger Roffing Co.,inc.
  61. Apr 24, 2002legacy_jobs:342763Alteration Commercial · Finaled$20,000
  62. Feb 13, 2002legacy_jobs:357107Alteration Commercial · Issued
  63. Feb 13, 20021009383Construction Equipment · IssuedColgate Scaffolding
  64. May 16, 2001562863Other · IssuedGeiger Roffing Co.,inc.
  65. May 16, 2001731510Other · IssuedGeiger Roffing Co.,inc.
  66. Dec 19, 20001010996Construction Equipment · IssuedColgate Scaffolding
  67. Nov 8, 200015960Construction Equipment · IssuedSodi Const. INC.
  68. Nov 8, 2000legacy_jobs:340318Temporary · Finaled
  69. Date not usable in source1228775MEP Mechanical HVAC · IssuedArista Air Condi CORP
  70. Date not usable in source856942Alteration Commercial · IssuedCrest Wood McHncl CO INC
  71. Date not usable in source856932MEP Plumbing · IssuedCrest Wood McHncl CO INC
  72. Date not usable in source856949Alteration Commercial · IssuedCrest Wood McHncl CO INC
  73. Date not usable in source312907Other · IssuedCw Brown INC
  74. Date not usable in source312580MEP Mechanical HVAC · IssuedCw Brown INC
  75. Date not usable in source800896Other · IssuedRapacioli Construction CORP.
  76. Date not usable in source704479MEP Plumbing · IssuedFour Star McHncl INC
  77. Date not usable in source704466MEP Plumbing · IssuedFour Star McHncl INC
  78. Date not usable in source678921Other · IssuedMicon Industries INC
  79. Date not usable in source678326Other · IssuedMicon Industries INC
  80. Date not usable in source520803MEP Mechanical HVAC · IssuedMicon Industries INC
  81. Date not usable in source678317MEP Mechanical HVAC · IssuedMicon Industries INC
  82. Date not usable in source659682Other · IssuedMicon Industries INC
  83. Date not in sourcelegacy_jobs:610484Alteration Commercial · Issued$25,000
  84. Date not in sourcelegacy_jobs:471076Alteration Residential · Pending
  85. Date not in sourcelegacy_jobs:2427699Temporary · Finaled

Full permit history at this parcel · as of Jul 19, 2026.

Other permits by Welkin Mechanical LLC

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Developer details
Permit #
2991510
Canonical ID
1:2991510
Source permit ID
2991510
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